DEVICE TO ANALYSE BIOLOGICAL FLUID Russian patent published in 2013 - IPC G01N21/01 G01N21/17 

FIELD: measurement equipment.

SUBSTANCE: device to analyse a biological fluid contains an optically transparent cuvette installed in a thermostatting block, a source of optical radiation, three photodetecting devices and a sample mixing facility. All photodetecting devices are installed around the longitudinal axis of the cuvette at different angles α to the optical axis of the radiator, besides, the normal line to the sensitive site of the first of them matches with the optical axis of the source of radiation, and normal lines to the sensitive sites of two other photodetecting devices are arranged at the angles 30° and 90° to the optical axis of the radiator. The outlet of the first photodetecting device is connected to the inlet of the controlled block of power supply of the radiation source, the first outlet of the controlled power supply block is connected to the inlet of the source of radiation, and its second outlet - to the inlet of the analog-digital photodetecting converter, at the same time the second and third photodetecting devices are also connected to the inlets of the analog-digital converter, the outlet of which is connected to the recording block.

EFFECT: higher sensitivity and validity of detection of readings of plasma hemostasis and concentration of both platelets and C-reactive protein.

4 cl, 1 dwg, 1 tbl